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    • 1. 发明公开
    • 컨커런트 다중밴드 고주파 증폭회로
    • 并联多频RF放大器电路
    • KR1020150087669A
    • 2015-07-30
    • KR1020140007880
    • 2014-01-22
    • 삼성전기주식회사
    • 성낙균
    • H03F3/193H03F1/56
    • H03F3/193H03F1/565H03F3/211H03F2200/111H03F2200/222H03F2200/225H03F2200/387H03F2200/39H03F2200/391
    • 본발명은컨커런트다중밴드고주파증폭회로에관한것으로, 하나의입력단을통한입력신호에포함된제1 및제2 밴드신호각각에대해임피던스매칭을수행하는입력임피던스매칭부; 상기입력임피던스매칭부를통한상기제1 및제2 밴드신호를각각증폭하는제1 및제2 밴드증폭부를포함하는입력증폭부; 상기제1 및제2 밴드증폭부에공통연결된제1 공통노드와접지사이에연결되어, 입력임피던스매칭을위한임피던스소자를갖는공통접지회로부; 및상기제1 및제2 밴드증폭부각각으로부터의신호를증폭하는출력증폭부; 를포함할수 있다.
    • 本发明涉及同时多频带射频(RF)放大器电路。 并发多频带RF放大器电路可以包括:输入阻抗匹配部,其通过输入端子对包括在输入信号中的第一和第二频带信号中的每一个执行阻抗匹配; 输入放大部分,其包括通过输入阻抗匹配部分放大第一和第二频带信号的第一和第二频带放大部分; 公共接地电路部分,其连接在接地和连接到第一和第二频带放大部分的第一公共节点之间,并具有用于输入阻抗匹配的阻抗元件; 以及分别放大来自第一和第二频带放大部分的信号的输出放大部分。
    • 3. 发明公开
    • 증폭 회로 및 그 동작 방법
    • 放大器电路及其工作方法
    • KR1020130091862A
    • 2013-08-20
    • KR1020120013141
    • 2012-02-09
    • 삼성전기주식회사
    • 송영진원준구김윤석이이쯔까,신이치박주영김기중
    • H03F1/30H03F1/26
    • H03F1/08H03F1/32H03F3/19H03F3/211H03F2200/18H03F2200/225
    • PURPOSE: An amplifier circuit and an operating method thereof are provided to dispose an inductive element and a capacitive element in series in a transfer path of an input signal to be amplified, thereby suppressing oscillations and removing harmonic components. CONSTITUTION: An amplifier circuit comprises an amplifying unit (110), at least one first bias circuit unit (120), at least one second bias circuit unit (130). The amplifying unit includes a plurality of transistors (Q1-Qn). The at least one first bias circuit unit is connected to the plurality of transistors, and includes a DC bias signal terminal (125) and a plurality of resistors (Rq1-Rqn). The at least one second bias circuit unit applies a signal to be amplified to the plurality of transistors, and includes capacitive elements (C1-Cn) and inductive elements (L1-Ln) connected in series.
    • 目的:提供一种放大器电路及其操作方法,以将电感元件和电容元件串联放置在要放大的输入信号的传输路径中,从而抑制振荡并去除谐波分量。 构成:放大器电路包括放大单元(110),至少一个第一偏置电路单元(120),至少一个第二偏置电路单元(130)。 放大单元包括多个晶体管(Q1-Qn)。 所述至少一个第一偏置电路单元连接到所述多个晶体管,并且包括DC偏置信号端子(125)和多个电阻器(Rq1-Rqn)。 所述至少一个第二偏置电路单元将要放大的信号施加到所述多个晶体管,并且包括串联连接的电容元件(C1-Cn)和电感元件(L1-Ln)。
    • 6. 发明公开
    • 지상파 튜너의 부스터회로
    • 地波调谐器的输入电路
    • KR1020080026968A
    • 2008-03-26
    • KR1020060092262
    • 2006-09-22
    • 엘지이노텍 주식회사
    • 최석동
    • H04N5/50
    • H03F3/191H03F2200/114H03F2200/165H03F2200/216H03F2200/225H03F2200/237H03F2200/391H03F2200/451H03F2200/75H03H5/02H04B1/10H04B1/18
    • A booster circuit for a terrestrial tuner is provided to attenuate or block the intensity of a signal previously through a rejection filter before the signal with a strong input intensity is amplified by a booster when the unnecessary strong intensity of signal is inputted except a broadcasting channel signal received through an antenna, thereby preventing interference between the unnecessary signal and the broadcasting channel signal and an oscillator killing phenomenon. A booster circuit for a terrestrial tuner comprises a loop-through(20), a citizen band filter(21), a rejection filter(22) and a booster(23). The loop-though outputs a broadcasting channel signal inputted from an antenna(ANT) to other devices. The citizen band filter removes a citizen band signal from a broadcasting channel signal inputted through an antenna. The rejection filter attenuates a frequency band in which there is no broadcasting signal in the broadcasting channel signal. The booster amplifies the broadcasting channel signal outputted from the rejection filter.
    • 提供用于地面调谐器的升压电路,用于当除了广播信道信号之外输入不必要的强强度信号时,在具有强输入强度的信号被强制放大之前通过抑制滤波器衰减或阻挡先前通过抑制滤波器的信号的强度 通过天线接收,从而防止不必要的信号与广播信道信号之间的干扰和振荡器杀死现象。 用于地面调谐器的升压电路包括环路(20),公民带滤波器(21),拒绝滤波器(22)和增强器(23)。 环路输出将从天线(ANT)输入的广播信道信号输出到其他设备。 公民频带滤波器从通过天线输入的广播频道信号中去除公民频带信号。 抑制滤波器衰减广播信道信号中没有广播信号的频带。 增强放大器放大从拒绝滤波器输出的广播频道信号。
    • 7. 发明公开
    • 직각 위상 오프셋 전원 증폭기
    • 正常偏移功率放大器
    • KR1020070015190A
    • 2007-02-01
    • KR1020067023057
    • 2005-05-19
    • 레이티언 캄파니
    • 셀린,죤,알.
    • H03F3/21H03F3/68
    • H03F1/0261H03F1/0277H03F1/0288H03F3/191H03F3/211H03F3/72H03F2200/225H03F2200/391
    • An amplifier having a first transistor with an output coupled to a common output node and a switch for coupling a control electrode of the first transistor to a first bias source to bias such first transistor to a conducting state during a relatively high power operating mode or for removing such control electrode from the first bias source to place the first transistor in a non-conducting condition during a relatively low power operating mode selectively in accordance with a control signal. A second transistor has an output coupled to the common output node and a second bias source coupled to a control electrode to the second transistor to bias such second transistor to a conducting state during both the relatively high power operating mode and the relatively low power operating mode. ® KIPO & WIPO 2007
    • 具有第一晶体管的放大器,其具有耦合到公共输出节点的输出端和用于将第一晶体管的控制电极耦合到第一偏置源的开关,以将该第一晶体管偏置为在较高功率操作模式期间的导通状态,或者用于 从所述第一偏置源移除所述控制电极,以根据控制信号选择性地在所述第一晶体管处于非导通状态期间在相对低功率操作模式期间。 第二晶体管具有耦合到公共输出节点的输出和耦合到第二晶体管的控制电极的第二偏置源,以在相对高功率操作模式和相对低功率操作模式期间将该第二晶体管偏置为导通状态 。 ®KIPO&WIPO 2007